[Talk-us] Cycle_greenway

[stevea]

Harald Klems writes:
>I would map greenways/bike boulevards as lcn=yes or, if they have a 
>name, maybe as a lcn route relation. Other than that, I think it's 
>more important to map physical characteristics such as stop signs, 
>bike-specific infrastructure, diverters, and speed limits on those 
>routes.

As a dedicated OSM bicycle mapping geek, I consider two major 
components we map to be infrastructure (each underlying facility, 
like highway=cycleway, cycleway=lane, others) AND a route if one 
exists.  At a local level like these Seattle greenways, it seems 
sensible to do what Harald suggests and tag a route as lcn=yes on the 
individual infrastructure (cycleway=cycle_greenway) elements.  You 
could also sensibly collect these into a relation tagged network=lcn 
if they have a name= or a number (ref=) as a route.

A nod toward "tagging for the renderer" hereby acknowledged, I don't 
believe cycleway=cycle_greenway renders at the present time in Cycle 
Map layer/OpenCycleMap (as other cycleway tags do:  highway=cycleway 
as a blue dashed line, cycleway=lane as blue casings on the way, 
others).  Still, one might tag cycleway=cycle_greenway knowing it 
doesn't render, and still also correctly tag lcn=yes on the ways or 
collect them together into a relation with network=lcn (if named or 
numbered) and get THAT to render.

There is bicycle infrastructure tagging and how THAT renders, and 
there is bicycle route relation tagging and how THAT renders.  As you 
keep these considerations in mind you can both accurately tag as well 
as get a rendering that makes sense from those tags.  Accurate 
tagging is more important than pleasing rendering.  Again, I'm 
agreeing with Harald as he says physical characteristics (starting 
with infrastructure) are "more important."  Yet, so are routes if 
they truly exist as named or numbered entities, so add them if they 
do.  The "in-between solution" of adding lcn=yes tags to the 
underlying infrastructure (yet no relation with network=lcn) 
especially makes sense if, for example, the greenways are also signed 
with "Bike Route" signs but don't have a name or number.

I do hope that helps!

SteveA
California